@article{zu23351,
          number = {71/2},
           title = {????????????? ?? ??????????? ??????????? ?????? ? ???????????????},
          author = {?. ?. ???? and ?. ?. ????? and ?. ?. ???????? and ?. ?. ???????},
            year = {2003},
           pages = {387--388},
         journal = {?????? ??????????? ?????????? ????????? ????????????},
        keywords = {????????????? ?? ??????????? ??????????? ?????? ? ???????????????
},
             url = {http://eprints.zu.edu.ua/3351/}
}